1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Georgia [21]
2 years ago
12

The temperature is −18.2 Celsius in South Dakota and -9.7 Celsius Minnesota. Which one of the following inequalities correctly c

ompares the temperatures? Choose 1 answer: Which one of the following descriptions is correct?​

Mathematics
2 answers:
andrezito [222]2 years ago
6 0

Answer:

A and A

Step-by-step explanation:

please mark brainliest.

Goryan [66]2 years ago
3 0

Answer:

A and A

Step-by-step explanation:

You might be interested in
-1^{2008} + (-1)^{2007} = ?<br><br> (1 - (-1)^[11])^[2] = ?<br><br> Questions for fun~
vladimir2022 [97]
1. -2
2. 4
Is the answers to the following questions
7 0
3 years ago
NO LINKS <br> Please help
Triss [41]

Answer:

V≈1287.88

A≈1152.98

Step-by-step explanation:

7 0
2 years ago
Solve using substitution<br>x-2y =2<br>3x+4y=3​
lorasvet [3.4K]

Answer:

7/5, y = -3/10

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What does y equal for the equation <br> 6y-10=y+25
SVEN [57.7K]
6y-10=y+25
subtract y from both sides
5y-10=25
add 10 to both sides
5y=35
divide both sides by 5
y=7

6 0
3 years ago
Prove that if x is an positive real number such that x + x^-1 is an integer, then x^3 + x^-3 is an integer as well.
Shkiper50 [21]

Answer:

By closure property of multiplication and addition of integers,

If x + \dfrac{1}{x} is an integer

∴ \left ( x + \dfrac{1}{x} \right) ^3 = x^3 + \dfrac{1}{x^3} +3\cdot \left (x + \dfrac{1}{x} \right ) is an integer

From which we have;

x^3 + \dfrac{1}{x^3} is an integer

Step-by-step explanation:

The given expression for the positive integer is x + x⁻¹

The given expression can be written as follows;

x + \dfrac{1}{x}

By finding the given expression raised to the power 3, sing Wolfram Alpha online, we we have;

\left ( x + \dfrac{1}{x} \right) ^3 = x^3 + \dfrac{1}{x^3} +3\cdot x + \dfrac{3}{x}

By simplification of the cube of the given integer expressions, we have;

\left ( x + \dfrac{1}{x} \right) ^3 = x^3 + \dfrac{1}{x^3} +3\cdot \left (x + \dfrac{1}{x} \right )

Therefore, we have;

\left ( x + \dfrac{1}{x} \right) ^3 - 3\cdot \left (x + \dfrac{1}{x} \right )= x^3 + \dfrac{1}{x^3}

By rearranging, we get;

x^3 + \dfrac{1}{x^3} = \left ( x + \dfrac{1}{x} \right) ^3 - 3\cdot \left (x + \dfrac{1}{x} \right )

Given that  x + \dfrac{1}{x} is an integer, from the closure property, the product of two integers is always an integer, we have;

\left ( x + \dfrac{1}{x} \right) ^3 is an integer and 3\cdot \left (x + \dfrac{1}{x} \right ) is also an integer

Similarly the sum of two integers is always an integer, we have;

\left ( x + \dfrac{1}{x} \right) ^3 + \left(- 3\cdot \left (x + \dfrac{1}{x} \right ) \right  ) is an integer

\therefore x^3 + \dfrac{1}{x^3} =   \left ( x + \dfrac{1}{x} \right) ^3 - 3\cdot \left (x + \dfrac{1}{x} \right )= \left ( x + \dfrac{1}{x} \right) ^3 + \left(- 3\cdot \left (x + \dfrac{1}{x} \right ) \right  ) is an integer

From which we have;

x^3 + \dfrac{1}{x^3} is an integer.

4 0
3 years ago
Other questions:
  • The minute hand of a clock is 3 inches long. how far does the tip of the minute hand move in 20 minutes? if necessary, round the
    7·1 answer
  • What is the length of the hypotenuse of a right triangle with legs of length 6 and 4 ?
    7·1 answer
  • Yolanda dug a hole in the ground that is deeper than -10 inches . She says the depth of the hole is greater than 10 inches. Is Y
    11·1 answer
  • If ben saves $15 a week for the next 10 weeks, will he be able to buy the stereo and why?
    5·1 answer
  • What is the value of the base in the power (-125)-3?<br>a -125<br> b -3<br>c 1/125<br>d 375
    10·1 answer
  • In the equation W=8s+2b explain why the varable s has coefficient of 8 and the variable b a coefficient of 2
    13·1 answer
  • Confusing stuff! Giving out 50 big points!
    12·2 answers
  • -1/3 - 2/3 I’m sooooo confused
    7·1 answer
  • Of the 300 fifth graders at Benson Elementary School, 40% signed up for an after-school activity. How many students signed up fo
    12·1 answer
  • 2x + 8 X-2 B In this diagram, mZACD = [?]°
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!